He used to say that personal beauty was a better introduction than any letter; 18 but others say that it was Diogenes who gave this description of it, while Aristotle called beauty "the gift of God"; that Socrates called it "a short-lived tyranny"; Theophrastus , "a silent deceit"; Theocritus , "an ivory mischief"; Carneades , "a sovereignty which stood in need of no guards".